in my game the crab eats worms, and the lobster eats crab. I want to make the lobsters move faster for every worm the crabs eat, but how?
kingenzo wrote ...
2013/2/7
how to increase speed of lobster
Well that is a little difficult.
You need to change the speed of your lobster by getting his reference and changing the value.
I don't know how the lobster moves but you basicly need this here:
Then you just need to makt your lobster move using the speed value.
For example you could use a method like this:
Call the method like this:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | //in your Crab class:import java.util.List;//...//in your eatWorm method (or however it's called);public void eatWorm() { //... //after eating the worm; List<Lobster> lobsters = getWorld().getObjects(Lobster.class); for (Lobster lobster : lobsters) { lobster.incrementSpeed(1);//or a higher value than 1 if you want to make him much faster; }}//in your Lobster class;//...private int speed;// = the starting speed of your lobster;public void incrementSpeed(int speed) { this.speed += speed;}} |
1 2 3 4 5 6 | public void move(double speed) { double angle = Math.toRadians( getRotation() ); int x = (int) Math.round(getX() + Math.cos(angle) * speed); int y = (int) Math.round(getY() + Math.sin(angle) * speed); setLocation(x, y);} |
1 2 | //in the act method of your lobster class (where also the move(double speed) method is in);move(speed); |
you have to create the incrementSpeed() method yourself by putting
in the lobster class
1 2 3 4 5 6 7 8 | //in your Lobster class; //... private int speed;// = the starting speed of your lobster; public void incrementSpeed(int speed) { this.speed += speed; } |
is there something to make them increase speed a little slower,
for (Lobster lobster : lobsters) {
lobster.incrementSpeed(1);//or a higher value than 1 if you want to make him much faster;
I want not to make him much faster but make him daster, but slower faster
What you are asking is for the acceleration to be lower, but the range of speed basically stay the same.
One way to accomplish this is to multiply the speed by some number (let us say, 10), but move by one-tenth that amount (speed/10). This way the accceleration is actually one-tenth of what is was before. The maximum value of speed will have to be multiplied by ten also to mantain the initial maximum speed. I believe my Teleport Demo scenario would be a good example of how this works.
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